Scraper



April 25, 1944. c. ERIC-KSYEN SCRAPER Filed July 13. 1943 s Sheds- Sheet1 Invntar w Ghrzlsizan Erwlzs era April 25, 1 944;

' c. ERICKSEN 2,347,473

SCRAPER Filed July 13/ 19413 3 Sheets-Sheet 2 a mmsimn Eat/mew InventorI Attorneys April 25, c. ERICKSEN SGRAPER FiledJuly 15, 945 :sSheetsg-Sheet a H. .H if

Patented Apr. 25, 1944 UNITED STATES PATENT OFFlCE 4 Claims.

My invention relates to improvements in'hand scrapers of the generaltype forming the subject matter of my U. S. Patent No. 2,317,041, datedApril 20, 1943, and over which the instant invenfacturing andreplacement costs.

Other and subordinate objects are also comprehended by my invention, allof which, together with the precise nature of my improvements, will breadily understood when the succeeding description and claims are readwith reference to the drawings accompanying and forming part of thisspecification.

In said drawings:

Figure 1 is a View in side elevation of a preferred form of my improvedscraper,

Figure 2 is a view in top plan of the same,

Figure 3 is a view in longitudinal section taken on the line 33 ofFigure 2,

Figure 4 is a view in end elevation looking at the front end of thescraper,

Figure 5 is a view in perspective of the scraper blade detached,

Figure 6 is a view in perspective of a modified form of the scraperblade,

Figure 7 is a fragmentary view in side elevation of a modified form ofholder for the modified form of blade,

Figure 8 is a view in front elevation of the modified form of holder andblade,

Figure 9 is a view in perspective of another modified form of scraperblade,

Figure 10 is a fragmentary View in side elevation of still anothermodified form of holder and scraper blade,

Figure 11 is a, fragmentary view in top plan of the holder and bladeshown in Figure 10, and

Figure 12 is a view in perspective of the modified form of scraper bladeshown in Figures 10 form my improved scraper comprises a holderdesignated generally I and including a body part 2, a handle 3, and apair of upper and lower clamping plates 4, 5 for the scraper blade 6.

The body part is of elongated form and preferably made of wood, with arounded rear end, as

at 1, concave side portions 8 facilitating gripping the same with thehand, and a widened front end 9 having rabbeted top and bottom, curvedfaces I0, H converging to a sharp straight front" edge l2 andterminating at the juncture thereof with the remainder of the body partin shoulders I3, M, respectively. In the longitudinal center thereof, apair of bolt holes I5 are provided in the body part 2 which open ontothe top and bottom of said body part and are arranged one adjacent thetransverse center of said body part and the other adjacent the rear endof said part. The bolt holes !5 are of keyhole form. A pair ofcountersinks I6 are provided in the top of the body part 2 around thebolt holes I5, and a pair' of thin metal, keyhole wear plates I! arefixed in said countersinks l 6 below the top of the body part, as at l8,said plates surrounding the upper ends of the bolt holes l5.

The handle 3 is of gooseneck form and suitable wood with an enlargedflat, top front end l9 fitting flat against the bottom of the body part2 from approximately the transverse center to the rear end of said bodypart. A pair of flat headed screw bolts 20 extend downwardly through thesmaller parts of th bolt holes l5, with heads bearing on the plates l1,said bolts extending into bores 2! in the head l9 and being securedthere-' in by nuts 22 countersunk in-enlarged ends 23 of said bores. Thehandle 3, proper, slopes from the head l9 and from the body part 2rearwardly and downwardly with a gradual inclination.

As will be apparent, by merely loosening the bolts 20 and shoving thehandle 3 in a direction to enter the bolts in the larger parts of thebolt holes I5, said bolts may be withdrawn out of said bolt holes andthe handle 3 thus easily and quickly detached, as occasion may require.

Thescraper blade I5 is rectangular in shape, with a central,transversely S-shaped. channel forming portion 24 and opposite side edgecutting portions 25 curved transversely oppositely, relatively, so thatsaid portions 25 are slightly hooked transversely in opposite directionswith respect to each other.

The clamping plates 4, 5 seat against the faces H], I l and convergeforwardly, with the rear edges thereof seating against the shoulders i3,is, and said plates extend across the front end 9 of the body part 2from side to side thereof, and forwardly of said end. The upper plate 4is formed along its front edge with a pair of transversely extending,rounded ribs 26 interfitting with the channel-forming portions 24 on thetop side of the scraper blade 6, and the lower clamping plate 5 isprovided with a front edge groove 2?, and a front edge rib 28, whichinterfits with said channel-forming portion 24 of said blade 6 on thebottom side of the said plate. Screws 23 adjacent the rear edges of saidplates 4, 5 secure the same to the front end 9 of the body part 2. Theupper plate 4 clears the top face l0, forwardly of its attaching screws29, so that it may be flexed toward the lower plate 25 to clampinglyengage the ribs 26 thereon and the groove 21 and rib 28 of the lowerplate with opposite sides of the scraper blade 6. As best shown inFigures 1 and 3, the ribs 26 of the upper plate 4 and the groove 27 andrib 28 of the lower plate 5 mate with the portion 24 of the blade 6 in aplane inclined downwardly and forwardly of the horizontal plane of thebody part 2, so that a leading side portion 25 of the blade 6 extendsbelow the lower clamping plate 5 and curvesdownwardly and rearwardlyrelative thereto. The upper plate 4 is concaved in the rear of the ribs26, as at 35, for clearance between said plate and the top face It, toaccommodate the other side portion 25 of said blade 6 between said upperplate and said face. A single screw bolt 3| extends through the clampingplates 4, 5 and through the front end 9 of the body part 2, forwardly ofthe screws 29, and in the longitudinal center of the body part, andprovides for clamping the plates 4, 5 against the scraper blade 5, saidbolt having its head and nut end suitably countersunk in said plates.

Obviously, the described scraper blade 5 may be reversed between theplates 4, 5 for use of either cutting side portion 25, as desired, andsaid blade is designed for flat scraping, as on floors or the like.

In the modified form of scraper shown in Figures 6, '7 and 8, thescraper blade 32 is generally rectangular, with a pair of closelyspaced, channel-forming ribs 33 extending along each face thereof uponopposite sides of the longitudinal center of the blade, and said bladeis generally 8- shaped transversely to provide opposite side cuttingportions 34 transversely curved oppositely, relatively, one of which isstraight edged for flat scraping, and the other of which has alongitudinally convex edge for scraping, for instance, molding, notshown. The upper clamping plate 35, in this instance, is formed with apair of grooves 35 in the front edge thereof for fitting over the ribs33 on one side of the scraper blade 32, and the lower clamping plate 35is provided with a transverse, front edge rib 3'! fitting in between theribs 33 on the other side of said blade, and also with a groove 38adjacent to and parallel with said rib and fitting over the rib 33 onsaid other side of the scraper blade. The clamping plates 35, 31, inthis instance, clamp the blade 32 in a plane inclined forwardly andupwardly of the horizontal plane of the body part 39 to dispose acutting side of the blade 32 well forwardly of the plates 35, 31, andthe front edge of the upper clamping plate 35 is thickened and extendsforwardly past the lower clamping plate 31 to adequately back the blade32 under downward pressure of the scraper against the work. Otherwise,the construction and arrangement is substantially as described withreference to the first described form of the invention.

In the form of the invention shown in Figure 9, a scraper blade 40 isprovided of generally rectangular shape, in edge contour, and includinga central, longitudinal, channel-forming, transversely U-shaped rib 4i,and a pair of coplanar, flat portions 42 upon opposite sides of said ribterminating in oblique angled, straight, side cutting portions 42 on oneand the same side of said blade.

In Figures 10 and 1 a modified form of scraper blade is provided inwhich the side cutting portions 42, such as shown inFigure 9, areeliminated, and flat portions 44 upon opposite sides of a rib 45,similar to rib 4|, terminate in cutting edges 46, 41, the edge 46 beingconvex for use on molding and the like, and the edge 41 being straightfor flat scraping. In this form of the invention, the upper clampingplate is provided with a front edge, downwardly and rearwardly turnedrib 49 adapted to fit into the channel so formed by the rib 45, and thelower clamping plate 51 is formed with a front edge groove 52 forreceiving said rib '45, the rib 49 and groove 52 clampin the blade sothat its fiat, coplanar, side cutting portions 43 incline forwardly anddownwardly of the horizontal plane of the body part 53. The top face 54of the front end 55 of said body part 53 is notched transversely, as at56, and clears the upper plate 48 so that a flat portion 43 of th bladmay be accommodated between said plate 48 and said end 55, or a flatportion 42 and cutting portion 42' of the blade 40. Also, in this formof the invention, the upper clamping plate 48 coacts with a portion ofthe top face 54 to clamp a fiat portion of the blade therebetween, andthe leading edge of the front end 55 is grooved across the same, as at55, to seat the rib 45, or rib 4|, as the case maybe.

The foregoing will, it is believed, suffice to impart a clearunderstanding of my invention Without further explanation.

Manifestly, the invention is susceptible of modification withoutdeparting from the inventive concept, and right is herein reserved tosuch modifications as fall within the scope of the appended claims.

What I claim is: 1

1. In a scraper of the class described, an elongated holder including abody part having a reduced front end provided with top and bottom facesconverging forwardly, a pair of upper and lower clamping plates opposedto said top and bottom faces, respectively, in forwardly convergingrelation and extending forwardly of said front end, and a double edgedscraper blade clamped between said plates forwardly of said front endand in a plane oblique to the horizontal plane of said body part, saidblade having a central bent portion forming a rib on one side of theblade and a groove on the other side and said upper and lower plateshaving a rib and groove extending across the front end thereof,respectively, and mating with said groove and rib of the blade.

2. In a scraper of the class described, an elongated holder including abody part having a reduced front end provided with forwardly convergingtop and bottom faces, a pair of upper and lower clamping plates opposedto said top and bottom faces, respectively, in forwardly convergingrelation and having complemental ribs and grooves extending across thefront edges and the other interposed between the upper clamping plateand said top face, said upper clamping plate having a portion clearingsaid top face to provide a space for said other cutting portion.

3. In a scraper of the class described, a holder including a body parthaving a front end provided with top and bottom faces convergingforwardly, a pair of upper and lower clamping plates opposed to the topand bottom faces, respectively, and extending forwardly of said frontend, and a transversely S-shaped scraper blade interposed between saidplates forwardly of said end and having a pair of longitudinallyextending ribs on each side thereof closely spaced in each pair uponopposite sides of the 1ongitudinal center of the blade, the upper platehaving grooves therein interfitting With the pair of ribs on one side ofthe blade, and the lower plate having a rib thereon fitting in betweenthe pair of ribs on the other side of the blade, and a groove fittingover one rib of the last-mentioned pair.

4. In a scraper of the class described, a holder including an elongatedbody part having a front end provided with forwardly converging top andbottom faces, a pair of upper and lower clamping plates opposed to saidtop and bottom faces respectively, and extending forwardly of said frontend in converging relation, the upper plate having a rearwardly anddownwardly inclined front edge rib, and the lower plate having a frontedge groove opposed to said rib, and a scraper blade having alongitudinal central groove and rib interfitting with thefirst-mentioned rib and groove, one of said plates having a portionclearing said top face to provide a space between the plate and saidface, and said blade having an edge extending into said face.

CHRISTIAN ERICKSEN.

